What happens during a polyjacking job
Seven steps from inspection to same-day use. Most residential jobs finish in 2–4 hours.
1. Inspection & quote
A specialist measures the slab drop with a level, identifies the suspected cause (washout, fill settlement, frost), and quotes the job. Photo-based remote quotes are also available.
2. Site prep
We cover landscaping, mark out the lift pattern, and set up our injection rig. Vehicles are moved off the work area.
3. Drilling 5/8" injection holes
Holes are drilled in a precise pattern — usually 6–10 per panel — through the sunken slab. Holes are dime-sized and barely visible after patching.
4. Void fill phase
First, foam fills any underground voids without lifting. This stabilizes the soil column and prevents future re-settlement.
5. Controlled lift phase
Foam injection continues in small bursts while a laser monitors slab elevation. The slab rises mm-by-mm back to the target level.
6. Patching the holes
Holes are filled with a color-matched cement patch that blends in within a few weeks.
7. Same-day use
Foam reaches 90% strength in 15 minutes. Drive on it, walk on it, park on it as soon as the crew leaves.
What you'll see when we're done
- • Slab restored to original level (or within 1/8" of the target)
- • Eight to twelve dime-sized patches (will fade with age)
- • No demolition mess, no trucks, no new pour
- • Written warranty (typically 5–10 years)